New Posts New Posts RSS Feed - Is this normal, or is this scope broken?
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Check GunBroker.com for SWFA's No Reserve and No Minimum bid firearm auctions.

Is this normal, or is this scope broken?

 Post Reply Post Reply   Topic Search Topic Search  Topic Options Topic Options
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/25/2010 at 00:13
slowr1der View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: March/25/2010
Status: Offline
Points: 247
So I have a Nikon 3-9x40 Prostaff. I picked it up online for a heck of a deal. It would normally not be my first choice, or my second, or anywhere even close to my top choices, but I got such a good deal I couldn't pass it up. I figured I could try it out, see how I liked it, then sell it for a profit if I didn't like it as I expected. I decided once getting it, that it would be better than the Simmons I was temporary using until the SS 5-20 variable power comes out, so I decided to mount it to my rifle. Anyway, after I mounted it, I went to adjust the focus. This is where I noticed something odd. Once the focus knob was loosened it would wobble a little bit in your hand. Not a ton, but a little bit. I noticed as you moved it around slightly, the cross hairs would move around inside the scope too. Is this normal? Or is something wrong here? Does this mean every time I adjust the focus it's going to change zero? Once the focus knob is tightened down with the lock ring the cross hairs don't move. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/25/2010 at 02:05
Magnumdood View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: January/17/2009
Location: Illinois
Status: Offline
Points: 212

The reticle should never move unless you manipulate the elevation or windage turrets.  I hate to say it, but it appears you found the reason you got such a good deal.  Additionally, the focus ring should only turn on the threads, not wobble.



Edited by Magnumdood - September/25/2010 at 02:06
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/25/2010 at 02:55
slowr1der View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: March/25/2010
Status: Offline
Points: 247
I don't know if wobble is the correct word. When it's unscrewed quite a bit and the lock ring is not tight against it, you can push it up and down somewhat. I'm not sure wobbles is the best word. I just checked my Leupold VX-I and it does this exact same thing. So if it shouldn't do this I may be dealing with both Leupold customer service again as well as Nikons. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/25/2010 at 13:49
slowr1der View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: March/25/2010
Status: Offline
Points: 247
After looking at it more, I think it might not be the crosshairs moving, but instead the rear lens moving and making it appear as though the crosshairs move up and down as you move the lens. I'm not sure, but I know that every other scope I have with an adjustable eyepiece to adjust the focus is doing this, so I figure it really can't be a bad scope.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/25/2010 at 14:17
Magnumdood View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: January/17/2009
Location: Illinois
Status: Offline
Points: 212
Good news then!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/25/2010 at 14:19
sakomato View Drop Down
Optics Master
Optics Master
Avatar

Joined: February/28/2008
Location: Houston
Status: Offline
Points: 1085
The lock ring will square up and keep the ocular from moving after adjusted.  You should only adjust the ocular once, to make the reticle sharp and clear.  You should not have to move the ocular reticle adjustment again, ever.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/25/2010 at 15:06
slowr1der View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: March/25/2010
Status: Offline
Points: 247
So since all my other scopes do it too is it safe to assume this is normal?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/25/2010 at 22:01
Magnumdood View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: January/17/2009
Location: Illinois
Status: Offline
Points: 212
If you're really concerned, send it in to Nikon and ask them to look it over.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/27/2010 at 08:21
magshooter1 View Drop Down
Optics Journeyman
Optics Journeyman
Avatar

Joined: August/27/2008
Location: El Dorado, AR
Status: Offline
Points: 730
Have seen the same thing happen with some of mine and never had a problem out of them.  Once tightened down everything was fine. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/27/2010 at 18:16
tman1965 View Drop Down
Optics Master
Optics Master
Avatar

Joined: July/20/2010
Location: South Georgia
Status: Offline
Points: 1456
Originally posted by magshooter1 magshooter1 wrote:

Have seen the same thing happen with some of mine and never had a problem out of them.  Once tightened down everything was fine. 
+1
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/27/2010 at 23:23
biggreen747 View Drop Down
Optics Journeyman
Optics Journeyman
Avatar

Joined: October/16/2009
Location: Colorado
Status: Offline
Points: 470
Originally posted by sakomato sakomato wrote:

The lock ring will square up and keep the ocular from moving after adjusted.  You should only adjust the ocular once, to make the reticle sharp and clear.  You should not have to move the ocular reticle adjustment again, ever.

Or untill your vision changes. Unfortunately that happens to most of us eventually.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/29/2010 at 16:12
slowr1der View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: March/25/2010
Status: Offline
Points: 247
Well, I shot it today and it shot great. Same POI at all different magnifications I tried, and it stayed zeroed. 
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Similar Threads: "Is this normal, or is this scope broken?"
Subject Author Forum Replies Last Post
Night Hog Hunting with normal Scope Erich10931 Varmint Scopes 3 10/30/2007 2:06:11 PM
Is this normal for a Burris scope? Centerfire Rifle Scopes 14
Broken reticle on IOR scope riffer Rifle Scopes 5
Is this spotting scope broke? zotl Spotting Scopes 2 8/15/2007 10:02:51 PM
Is this scope broken? hometheaterman Rifle Scopes 5
How to sell a BROKEN scope Urimaginaryfrnd Tactical Scopes 14
HELP! Broken Scope jimbo Tactical Scopes 1
HELP! Broken Scope jimbo Tactical Scopes 4
Are shims normal? dls56 Rings and bases 3
Warne rings- is this normal ? bricat Rifle Scopes 5 9/5/2007 12:29:48 PM


This page was generated in 0.453 seconds.